3138122457 has 6 divisors (see below), whose sum is σ = 4532843562. Its totient is φ = 2092081632.

The previous prime is 3138122453. The next prime is 3138122473. The reversal of 3138122457 is 7542218313.

3138122457 is a `hidden beast` number, since 3 + 1 + 381 + 224 + 57 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2313513801 + 824608656 = 48099^2 + 28716^2 .

It is not a de Polignac number, because 3138122457 - 2² = 3138122453 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3138122453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 174340128 + ... + 174340145.

It is an arithmetic number, because the mean of its divisors is an integer number (755473927).

Almost surely, 2^3138122457 is an apocalyptic number.

It is an amenable number.

3138122457 is a deficient number, since it is larger than the sum of its proper divisors (1394721105).

3138122457 is a wasteful number, since it uses less digits than its factorization.

3138122457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348680279 (or 348680276 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 3138122457 is about 56018.9473035686. The cubic root of 3138122457 is about 1464.0524271850.

The spelling of 3138122457 in words is "three billion, one hundred thirty-eight million, one hundred twenty-two thousand, four hundred fifty-seven".